early_init.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bootblock_common.h>
#include <superio/smsc/lpc47m15x/lpc47m15x.h>
#include <northbridge/intel/i945/i945.h>
#include <southbridge/intel/i82801gx/i82801gx.h>
 
#define SERIAL_DEV PNP_DEV(0x2e, LPC47M15X_SP1)
#define PME_DEV PNP_DEV(0x2e, LPC47M15X_PME)
 
void mainboard_late_rcba_config(void)
{
        /* dev irq route register */
        RCBA16(D31IR) = 0x0132;
        RCBA16(D30IR) = 0x0146;
        RCBA16(D29IR) = 0x0237;
        RCBA16(D28IR) = 0x3201;
        RCBA16(D27IR) = 0x0146;
 
        /* Disable unused devices */
        RCBA32(FD) |= FD_INTLAN;
}
 
void bootblock_mainboard_early_init(void)
{
        /* Enable SuperIO PM */
        lpc47m15x_enable_serial(PME_DEV, 0x680);
        lpc47m15x_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); /* 0x3f8 */
}